The War at Home - 2013 is rated/received certificates of: Canada:PG
Born of War - 2013 is rated/received certificates of: Japan:G
War Is a Tender Thing - 2013 is rated/received certificates of: Singapore:PG13
War Chod Na Yaar - 2013 is rated/received certificates of: India:U/A
Total War Rome II - 2013 VG is rated/received certificates of: Australia:MA15+ (2013) Singapore:G
Fearless Vampire Killers At War with the Thirst - 2013 is rated/received certificates of: UK:12A
The US Civil War (American Civil War) was an undeclared war and had many naval battles; are you asking about that war?
The cast of The Undeclared War - 1966 includes: Ted Yates as himself
Quasi-War
The cast of Undeclared War - 2013 includes: Panagiotis Amarantos as John Angelos Kalfopulos as Captain Christian Koka as Blogger Stefanos Kouroumanis as Mitsos Vangelis Mageiros as Kidnaper Lyckourgos Mavridopoulos as Leonidas Giorgos Tsinidis as Paul Giannis Vagionas as Boss Aliki Xantopoulou as Aliki
North Vietnam.
The War Zone - 2011 is rated/received certificates of: USA:PG